For sale: GMC 2013 catalytic converters. The ones that come in threes. Some are emptied and some are not. Fits GMC Sierra, Tahoe, and Yukon models 2013, 2012, and older that come with 3 catalytic converters. I have emptied and full ones. Contact via WhatsApp for a quick response. Catalytic converters Lead converters Lead converter Catalytic converter GMC Y-pipe